Functional descriptions:
Using Symantec security product may achieve a
high performance of virus checking, but it's unable to identify the name
of the virus.

Detailed instruction steps for setting up Symantec security
product:
1. Enable "File System Real-time Protection".
2. For both macro or non-macro viruses, the first
action you should take is to delete the infected file, and the Virus
Alert must be disabled.
3. To reduce the CPU usage, it is recommended to
use exclusion.
4. Select "Exclude selected files and folders" check
box in the option list, and click "exclusions".
5. An exclusion setting dialogue pops up.
6. Click "File/Folders".
7. A windows showing files and folders pops up.
8. Exclude all folders except \temp in the WinWebMail
installation directory so that the real-time protection will perform virus
checking only in this folder. Note: If \temp folder does not exist, create
it first before setting up this option. The \mail directory and all its
subdirectories should be excluded to avoid miscount of mail items and false
"mailbox full" alert.